1.Application
r-Butyrolactone is one of the major chemical materials which has an extensive application in pharmaceuticals, pesticides, petrochemicals, etc.. It can be used as raw material for making a-pyrrolidone, N-methyl-pyrrolidone, PVP, Vitamin B1, cyclopropamine and butyric acid,herbicide, control agent of plant growing, agent of extraction absorption dispersant for olefin & acetylene hydrocarbons, an ideal agent of antioxidant, plasticizer, dispersant, color fixing and solvent for synthetic, resin, and also agent of solvate, solidified, dye additive, antistatic for synthetic textile fibre, raw material of colour film coupler, printing ink, lubricant, etc.

2.Physical properties:
Molecular formula: C₄H₆O₂
Molecular weight: 86.1
Molecular structure:

3.Specifications Superior grade:

Purity (Wt%)	99.5
Moisture(Wt%)	0.05
Density 20g/ml	1.125-1.135
Colority HaZen	10
Refractive index N 20 D	1.435-1.438

4.Safety properties:r-Butyrolactone is part of low toxic solvent with narcotism, irritating to the skin and easy to be absorbed by.

5.Package & storage: Galvanized iron barrel, Net weight: 200kg0.05kg.
As the product is a liquor both absorptive and flammable, it should be sealed and stored in shelter for moistureproof, handling gently avoiding leakage.